DevToolsEdgeScrollbar class
A slim edge scrollbar with a wide invisible grab strip, so a finger never has to hit the thin thumb; drag or tap anywhere in the strip to scroll.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- DevToolsEdgeScrollbar
Constructors
- DevToolsEdgeScrollbar({Key? key, required ScrollController controller, required Axis axis, double startInset = 0, double endInset = 0, double touchWidth = 32, String thumbKeyPrefix = 'scrollbar-thumb'})
-
const
Properties
- axis → Axis
-
Vertical for the right edge, horizontal for the bottom edge.
final
- controller → ScrollController
-
The controller of the scrollable this bar drives.
final
- endInset → double
-
How far the track stays clear of the edge's end, e.g. of the floating action bar.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- startInset → double
-
How far the track stays clear of the edge's start, e.g. of a header.
final
- thumbKeyPrefix → String
-
Thumb keys are this plus the axis name, so tests can tell scrollbars apart.
final
- touchWidth → double
-
Width of the invisible grab strip — narrower over tappable rows, so it takes less of each row's tap area.
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< DevToolsEdgeScrollbar> -
Creates the mutable state for this widget at a given location in the tree.
override
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of DiagnosticsNode objects describing this node's
children.
inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toDiagnosticsNode(
{String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep.
inherited
-
toString(
{DiagnosticLevel minLevel = DiagnosticLevel.info}) → String -
A string representation of this object.
inherited
-
toStringDeep(
{String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String -
Returns a string representation of this node and its descendants.
inherited
-
toStringShallow(
{String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a one-line detailed description of the object.
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited